On my page the overall score is shown as 94. I do not understand what it really means. Does it mean comparing a native speaker, my pronounciation is 94? It does not compare with other users, if I am among the ones who have improved from another point to this point? Since when I have improved my score? Who are the same like me? Am I among the 20% of learners on the website? Is anyone improving better? Am I like another person and I have improved better?